Thanks for the replies and sorry I did not provide enough information. Right now I have my PC connected to the AVM 70 with a coax cable and run the video from the PC via HDMI to my TV/Projector, only because running HDMI from my PC into my AVM 70 and then HDMI out of the AVM 70 into my TV was causing the TV to switch to Game Mode for some videos. Placing the PC on it's own TV input fixes this. I have no issue connecting which ever way is best

Reading Abe_W's reply I do have a NAS with all of my movies and music and can try connecting that way as I was not aware that this setup (through the PC) could possibly be a bottleneck or degrade my sound, I do have an acoustically treated room, dedicated power and a conditioner. I have Anthem Signature M1 amps connected to my Anthem Signature S8s and use a Paradigm Signature Sub 2.